The latest update should fix the problem with the client getting stuck in the task manager under Windows. The pause system has been rewritten, and no longer halts the engine; it should work properly without freezing up now on machines w/ limits on the maximum number of connections that can be kept open. A few other bugs have been fixed, though the GUI width problem hasn't (and may not until the GUI is rewritten). Another stupid bug, where the download time estimate isn't blanked when the client is paused, will be fixed in the next version.